Your claim did not follow the insurer required format or submission rules. This is an administrative denial, not a clinical one.
Ask your provider to review the submission requirements for this insurer and resubmit the corrected claim. This is a billing department fix.
Appeal outlook: Very high when corrected
Recommended tool
Bill Advantage can analyze your denial and generate a ready-to-send appeal or dispute letter in minutes.
Open Denial Letter TranslatorDenial codes on your EOB explain why a claim was denied. Learn what the most common codes mean in 2026 and the exact steps to fix or appeal each one.
Read articleWhat to Do When Insurance Denies a ClaimInsurance denied your claim? Learn the exact steps to appeal a health insurance denial in 2026, from reading the denial letter to external independent review.
Read article